Setts



s. R. GLEASON.

"MACHINE F'OR PLACING RINGS 0N BOBBINS.

APPLICATION FILED FEB.21, 1920.

1,382,075. I PatentedJune21, 1921.

r1 #2 /0 /4 I INVENTOR.

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A TTORNE Y.

UNITED STATES PATENT OFFICE.-

STEPHEN R. GLEASON, F LOWELL, MASSACHUSETTS, ASSIGNOR TO H. HUTCHINS PARKER AND ALLAN D. PARKER, COPARTNERS, BOTH OF LOWELL, MASSACHU- SETTS, DOING BUSINESS UNDER THE NAME OF WALTER Ii. PARKER CO.

MACHINE FOR PLACING RINGS ON BOBBINS.

Specification of Letters Patent.

Patented June 21, 1921.

Application filed February 21, .1920. Serial No. 360,486.

. and useful Improvements in Machines for Placing Rings on Bobbins, of which the following is a specification.

This invention relates to automatic machines for placing the metal rings on bobbins such as are used in automatic looms.

The rings generally used for such bobbins are made of spring metal, split, and are forced over the large end of the bobbin into suitable shallow grooves.

The purpose of my invention is to provide an automatic ring feed which 006perates with a suitable plunger, the function of which is to force the rings from the feed rod over the butt end of the bobbin, into place. Preferably I so arrange my device that without changing the position of the bobbin, the first stroke of the plunger will place the lower ring, the next stroke the next ring, the third stroke the third ring, etc. I also prefer tomso arrange my device that the operator has nothing to do but put a new bobbin in place, remove the old one, and preferably turn the bobbin being operated on after each stroke of the plunger.

In the drawings, Figure 1 is a detail elevation of the feed worm and the adjoining part of the ring feed rod.

Fig. 2 is a view from the bottom of Fig. 1.

Fig. 3 is a plan view of the stepped table.

Fig. 4 is a view from the right of Fig. 3.

Fig. 5 is a detail in elevation of the cone guide and bottom of the feed rod alone.

Fig. 6 is an elevation showing the bottom of the feed rod and cone with a bobbin in position, and the plunger spring fingers as they appear after just having positioned the lower ring.

Fig. 7 is a front elevation of a machine.

Fig. 8 is a side elevation.

Fig. 9 isa top view of the intermittent gears.

A is the base of the machine shown as a plank or pedestal fastened or set up in a vertical position. 10 is a vertical worm feed shaft revoluble on the base in the bearings 16 and 37, the latter being carried by a plate 38 which also carries the table bearing 39.

Worm feed shaft 10 has fixed to it the feed worm 11 from the top of which extends upward the truncated conical guide 33. Between these, the worm 11 tapers down to an edge 45 small enough to pass between the r1ngs 24 carried by feed rod 21. This feed rod 21 is preferably arranged in removable contact with worm 11, the

arrangement shown comprising an elbow 17 pivoted at 18 to an extension of the bearing bracket 16, rod 21 preferably extending into elbow l7 and being held in positionby set screw 58.

An arm 19, carrying a weight 20, extends out from elbow 17, the weight and arm being so positioned as to tend to keep the feed rod in removable contact with worm 11.

Feed rod 21 is bent outwardly and downwardly at 56 and is preferably tubular at this end. I prefer to use a removable and detachable cone guide 23 having a shank 57 which is slidable in tubular end 56 of the feed rod and is held therein by means of a pin 55 which runs in the grooves 53 and 54 in the end 56, making a sort of bayonet oint.

At the bottom of the cone guide is acone center 50 adapted to enter the hole 51 in the butt end of a bobbin such as 22.

Cross shaft 2 carried in bearings 41, 41, attached to hanger 40 on base A, is driven by any suitable means from a pulley 1 and carries a pinion 3 which engages a gear 4 carried by crank shaft 5 supported in suitable bearings 43, 43, in ahanger 42.

This shaft carries a bevel gear 8 which engages a bevel gear 9 thereby transmitting power to the vertical worm feed shaft 10.

Crank shaft 5 carries a crank rod 6 to which, at 46, is pivoted plunger 34. The bottom end of plunger 34 slides in bearings 35 on hanger 36 carried by base A and at the bottom carries three spring plunger fingers 7 7, 7, adapted to slide down over the end 56 of feed rod 21 a suflicient distance to force a ring down into one of the ring grooves, such as 52 shown in Fig. 6.

At its lower end, shaft 10 carries anintermittent gear 12 which engages a gear 13 attached to the lower end of a spindle 14 carried in bearing 39 which carries a stepped table 15 having steps 25, 26, 27, of different elevations.

The operator places the butt end of a bobbin 22 up under cone guide 23 and rests held in the upper part untilit is swung back,

when they will be picked'off one by one as shaft 10 revolves the worm 11.

The parts are so timed that for each revolution of shaft 10 whereby a ring is fed, table 15 moves up one step and the plunger descends immediately after a new ring is released by the worm feed and allowed to run down end 56 on to cone guide 23.

It is desirable that the splits 125 in rings 24 should not be in lin on the finished bobbin, and to make sure of this I fiX a ring 29 to shaft 10 as by means of a set screw 82, and above this place collar 28 having an arm 30 with a double bend, the vertical arm of which is made as a knife edge 31 which will keep in frictional contact with feed rod 21 or the rings 24; thereon. The friction of the worm on the rings will turn them and will cause this knife edge 31 to remain in contact. Each ring will turn until its split 125 reaches the knife edge 31 which will stop it. The rings will thus descend with the splits in line until they drop below the knife edge, and-it is necessary merely for the operator to give a turn, as, for instance, a one-third turn after each descent of the plunger to make sure that no two rings are in alinement.

When the feed rod 21 is swung out to refill, the arm 30 will revolve with 10 and will always come back into position.

Rings may be fed on to the top of rod 21 by loosening set screw 58 and pulling it out of elbow 1 A rivet may be used at 18 instead of a pivot, making elbow 17 rigid and arm 19 and weight 20 useless.

Grooves 53 and 54 allow the cone guide 28 to rise when placing a new bobbin in position and to drop in position from step 25 to 26 and 27.

I claim:

1. In a machine for placing rings on bobbins, the combination of a base, with a worm feed shaft revoluble thereon, a feed worm carried thereby, a ring feed rod in removable contact with said worm, a slidable and detachable cone guide on one end of said rod, a stepped table opposite said cone intermittently revoluble by said worm shaft, and a plunger having fingers adapted to pass over said cone guide, together with driving means for said plunger and worm shaft.

2. In a machine for placing rings on b0bbins, the combination of a base, with a worm feed shaft lrevoluble thereon, a feed worm carried thereby, a ring feed rod in removable contact with said worm, a slidable and detachable cone guide on one end of said rod, a ring fixed to theworm shaft, a collar which rests on said ring and is frictionally revoluble with said, worm shaft, an arm carried'bysaid collar having a knife edge in operative relation with the feed rod, a stepped table opposite said cone intermittently revoluble by said worm shaft, and a plunger having fingers adapted to pass over said cone guide, together with driving means for said plunger and worm shaft.

3. In a machine for placing rings on bobbins, the combination of a base, with a worm feed shaft revoluble thereon, a feed worm carried thereby, a ring feed rod in contact with said worm, a cone guide on one end of said rod, a table opposite said cone guide, 1

and a plunger having fingers adapted to pass over said cone guide, together with driving means for said plunger and worm shaft.

In testimonywhereof I have aflixed my signature.

' STEPHEN R. GLEASON. 

